Lean manufacturing on the other hand is a system which looks at the entirety. One of the main advantages of lean may be the high quality. But quality is not the only focus of lean. It focuses on fulfilling the customer requirements effectively and efficiently. Aging lean has some similarities with Six Sigma concepts. For example management participation, customer focus are areas looked in lean manufacturing as well.
So what is lean six sigma? This is the application of six sigma concepts with lean concepts in order to achieve the favorable results of both of these techniques. Lean provides the flexibility, ways of improvement while six sigma gives very statistical measurable results especially in quality. This is the concept anyway.
As I have discussed on many of my previous posts, lean is a system based on concepts. Any other system can be used with lean as far as it does not violate the core concepts of lean. There are many success cases of lean six sigma concept. There are many failures as well. It is important not to loose the focus on main goals of lean. It is open for discussion the effect Six Sigma will bring to lean manufacturers. So if you have experiences to share leave a comment.